Email Settings for Yahoo! Mail

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You have three authentication options with Yahoo accounts:

1) OAuth2 (recommended for yahoo.com accounts)

Generally, Postbox will attempt to use OAuth2 (Yahoo) for authentication when setting up an account at a Yahoo.com domain, and this is what we recommend.

  1. In Postbox, go to the File menu and select New > Mail Account.
  2. Enter your name and email address.
  3. Postbox will automatically select OAuth2 (Yahoo) for authentication. Proceed forward and authenticate online with your Yahoo login.

2) App Passwords (recommended for ymail.com accounts)

If you cannot use OAuth2, then you can use an App Password that you generate at Yahoo. Note that an App Password is different than your Yahoo login.

  1. Go to Account Security option of your Yahoo Account. (Note that Two-step verification can be set to either ON or OFF.)
  2. Click on Generate App Passwords or Manage App Passwords.
  3. Under the Select Your App pulldown, select Other App.
  4. Enter Postbox in the text field.
  5. Click the Generate button.
  6. Copy the password, you'll need this password later when you set the account up in Postbox.

In the Postbox Account Wizard, enter your name and email address.

  • If your address is joeblow@yahoo.com, only enter joeblow
  • If your address is joeblow@ymail.com, enter joeblow@ymail.com

When you reach the settings confirmation page, change the Authentication type from OAuth2 to password.

Once your account attempts to connect, enter the App Password you generated.

3) Yahoo Login (not recommended)

If you have two-step verification turned OFF, then you have the option of using your Yahoo login, but this is not recommended.

  1. Go to Account Security option of your Yahoo Account.
  2. Set Two-step Verification to OFF.
  3. Turn Allow apps that use less secure sign in to ON.

In the Postbox Account Wizard, enter your name and email address.

  • If your address is joeblow@yahoo.com, only enter joeblow
  • If your address is joeblow@ymail.com, enter joeblow@ymail.com

When you reach the settings confirmation page, change the Authentication type from OAuth2 to password.

Once your account attempts to connect, enter Yahoo login.

 

Yahoo IMAP Settings

Incoming Mail (IMAP) Server

  • Server: imap.mail.yahoo.com
  • Port: 993
  • Connection Security: SSL/TLS
  • Username:
    • if your address is joeblow@yahoo.com, only enter joeblow
    • if your address is joeblow@ymail.com, enter joeblow@ymail.com
  • Authentication: In most cases, it should be OAuth2 (Yahoo)

Outgoing Mail (SMTP) Server

  • Server: smtp.mail.yahoo.com
  • Port: 465 or 587
  • Connection Security: SSL/TLS
  • Username:
    • if your address is joeblow@yahoo.com, only enter joeblow
    • if your address is joeblow@ymail.com, enter joeblow@ymail.com
  • Authentication: In most cases, it should be OAuth2 (Yahoo)
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